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Anni [7]
3 years ago
15

Qu 4.

Chemistry
1 answer:
Anna11 [10]3 years ago
3 0

Answer:

It's the second one down.

Explanation:

Gold

Mass 197

Number of Protons: 79

Number of Neutrons: 197 - 79 = 118

Number of electrons: = number of protons = 97

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